vtkSelectVisiblePoints Class Reference

extract points that are visible (based on z-buffer calculation) More...

#include <vtkSelectVisiblePoints.h>

Inheritance diagram for vtkSelectVisiblePoints:

Collaboration diagram for vtkSelectVisiblePoints:

Public Types
typedef vtkPolyDataAlgorithm	Superclass
Public Types inherited from vtkPolyDataAlgorithm
typedef vtkAlgorithm	Superclass
Public Types inherited from vtkAlgorithm
enum	DesiredOutputPrecision { SINGLE_PRECISION , DOUBLE_PRECISION , DEFAULT_PRECISION }
	Values used for setting the desired output precision for various algorithms. More...
typedef vtkObject	Superclass

Public Member Functions
virtual vtkTypeBool	IsA (const char *type)
	Return 1 if this class is the same type of (or a subclass of) the named class.
vtkSelectVisiblePoints *	NewInstance () const
void	PrintSelf (ostream &os, vtkIndent indent) override
	Methods invoked by print to print information about the object including superclasses.
float *	Initialize (bool getZbuff)
	Requires the renderer to be set.
bool	IsPointOccluded (const double x[3], const float *zPtr)
	Tests if a point x is being occluded or not against the Z-Buffer array passed in by zPtr.
vtkMTimeType	GetMTime () override
	Return MTime also considering the renderer.
void	SetRenderer (vtkRenderer *ren)
	Specify the renderer in which the visibility computation is to be performed.
vtkRenderer *	GetRenderer ()
	Specify the renderer in which the visibility computation is to be performed.
virtual void	SetSelectionWindow (vtkTypeBool)
	Set/Get the flag which enables selection in a rectangular display region.
virtual vtkTypeBool	GetSelectionWindow ()
	Set/Get the flag which enables selection in a rectangular display region.
virtual void	SelectionWindowOn ()
	Set/Get the flag which enables selection in a rectangular display region.
virtual void	SelectionWindowOff ()
	Set/Get the flag which enables selection in a rectangular display region.
virtual void	SetSelection (int, int, int, int)
	Specify the selection window in display coordinates.
virtual void	SetSelection (int[4])
	Specify the selection window in display coordinates.
virtual int *	GetSelection ()
	Specify the selection window in display coordinates.
virtual void	GetSelection (int data[4])
	Specify the selection window in display coordinates.
virtual void	SetSelectInvisible (vtkTypeBool)
	Set/Get the flag which enables inverse selection; i.e., invisible points are selected.
virtual vtkTypeBool	GetSelectInvisible ()
	Set/Get the flag which enables inverse selection; i.e., invisible points are selected.
virtual void	SelectInvisibleOn ()
	Set/Get the flag which enables inverse selection; i.e., invisible points are selected.
virtual void	SelectInvisibleOff ()
	Set/Get the flag which enables inverse selection; i.e., invisible points are selected.
virtual void	SetTolerance (double)
	Set/Get a tolerance in normalized display coordinate system to use to determine whether a point is visible.
virtual double	GetTolerance ()
	Set/Get a tolerance in normalized display coordinate system to use to determine whether a point is visible.
virtual void	SetToleranceWorld (double)
	Set/Get a tolerance in world coordinate system to use to determine whether a point is visible.
virtual double	GetToleranceWorld ()
	Set/Get a tolerance in world coordinate system to use to determine whether a point is visible.
Public Member Functions inherited from vtkPolyDataAlgorithm
virtual vtkTypeBool	IsA (const char *type)
	Return 1 if this class is the same type of (or a subclass of) the named class.
vtkPolyDataAlgorithm *	NewInstance () const
void	PrintSelf (ostream &os, vtkIndent indent) override
	Methods invoked by print to print information about the object including superclasses.
vtkTypeBool	ProcessRequest (vtkInformation *, vtkInformationVector **, vtkInformationVector *) override
	see vtkAlgorithm for details
vtkDataObject *	GetInput ()
vtkDataObject *	GetInput (int port)
vtkPolyData *	GetPolyDataInput (int port)
vtkPolyData *	GetOutput ()
	Get the output data object for a port on this algorithm.
vtkPolyData *	GetOutput (int)
	Get the output data object for a port on this algorithm.
virtual void	SetOutput (vtkDataObject *d)
	Get the output data object for a port on this algorithm.
void	SetInputData (vtkDataObject *)
	Assign a data object as input.
void	SetInputData (int, vtkDataObject *)
	Assign a data object as input.
void	AddInputData (vtkDataObject *)
	Assign a data object as input.
void	AddInputData (int, vtkDataObject *)
	Assign a data object as input.
Public Member Functions inherited from vtkAlgorithm
virtual vtkTypeBool	IsA (const char *type)
	Return 1 if this class is the same type of (or a subclass of) the named class.
vtkAlgorithm *	NewInstance () const
void	PrintSelf (ostream &os, vtkIndent indent) override
	Methods invoked by print to print information about the object including superclasses.
int	HasExecutive ()
	Check whether this algorithm has an assigned executive.
vtkExecutive *	GetExecutive ()
	Get this algorithm's executive.
virtual void	SetExecutive (vtkExecutive *executive)
	Set this algorithm's executive.
virtual vtkTypeBool	ProcessRequest (vtkInformation *request, vtkInformationVector **inInfo, vtkInformationVector *outInfo)
	Upstream/Downstream requests form the generalized interface through which executives invoke a algorithm's functionality.
vtkTypeBool	ProcessRequest (vtkInformation *request, vtkCollection *inInfo, vtkInformationVector *outInfo)
	Version of ProcessRequest() that is wrapped.
virtual int	ComputePipelineMTime (vtkInformation *request, vtkInformationVector **inInfoVec, vtkInformationVector *outInfoVec, int requestFromOutputPort, vtkMTimeType *mtime)
	A special version of ProcessRequest meant specifically for the pipeline modified time request.
virtual int	ModifyRequest (vtkInformation *request, int when)
	This method gives the algorithm a chance to modify the contents of a request before or after (specified in the when argument) it is forwarded.
vtkInformation *	GetInputPortInformation (int port)
	Get the information object associated with an input port.
vtkInformation *	GetOutputPortInformation (int port)
	Get the information object associated with an output port.
int	GetNumberOfInputPorts ()
	Get the number of input ports used by the algorithm.
int	GetNumberOfOutputPorts ()
	Get the number of output ports provided by the algorithm.
void	SetProgress (double)
	SetProgress is deprecated.
void	UpdateProgress (double amount)
	Update the progress of the process object.
virtual void	SetInputArrayToProcess (int idx, int port, int connection, const char *fieldAssociation, const char *attributeTypeorName)
	String based versions of SetInputArrayToProcess().
vtkInformation *	GetInputArrayInformation (int idx)
	Get the info object for the specified input array to this algorithm.
void	RemoveAllInputs ()
	Remove all the input data.
vtkDataObject *	GetOutputDataObject (int port)
	Get the data object that will contain the algorithm output for the given port.
vtkDataObject *	GetInputDataObject (int port, int connection)
	Get the data object that will contain the algorithm input for the given port and given connection.
virtual void	RemoveInputConnection (int port, vtkAlgorithmOutput *input)
	Remove a connection from the given input port index.
virtual void	RemoveInputConnection (int port, int idx)
	Remove a connection given by index idx.
virtual void	RemoveAllInputConnections (int port)
	Removes all input connections.
virtual void	SetInputDataObject (int port, vtkDataObject *data)
	Sets the data-object as an input on the given port index.
virtual void	SetInputDataObject (vtkDataObject *data)
virtual void	AddInputDataObject (int port, vtkDataObject *data)
	Add the data-object as an input to this given port.
virtual void	AddInputDataObject (vtkDataObject *data)
vtkAlgorithmOutput *	GetOutputPort (int index)
	Get a proxy object corresponding to the given output port of this algorithm.
vtkAlgorithmOutput *	GetOutputPort ()
int	GetNumberOfInputConnections (int port)
	Get the number of inputs currently connected to a port.
int	GetTotalNumberOfInputConnections ()
	Get the total number of inputs for this algorithm.
vtkAlgorithmOutput *	GetInputConnection (int port, int index)
	Get the algorithm output port connected to an input port.
vtkAlgorithm *	GetInputAlgorithm (int port, int index, int &algPort)
	Returns the algorithm and the output port index of that algorithm connected to a port-index pair.
vtkAlgorithm *	GetInputAlgorithm (int port, int index)
	Returns the algorithm connected to a port-index pair.
vtkAlgorithm *	GetInputAlgorithm ()
	Equivalent to GetInputAlgorithm(0, 0).
vtkExecutive *	GetInputExecutive (int port, int index)
	Returns the executive associated with a particular input connection.
vtkExecutive *	GetInputExecutive ()
	Equivalent to GetInputExecutive(0, 0)
vtkInformation *	GetInputInformation (int port, int index)
	Return the information object that is associated with a particular input connection.
vtkInformation *	GetInputInformation ()
	Equivalent to GetInputInformation(0, 0)
vtkInformation *	GetOutputInformation (int port)
	Return the information object that is associated with a particular output port.
virtual vtkTypeBool	Update (int port, vtkInformationVector *requests)
	This method enables the passing of data requests to the algorithm to be used during execution (in addition to bringing a particular port up-to-date).
virtual vtkTypeBool	Update (vtkInformation *requests)
	Convenience method to update an algorithm after passing requests to its first output port.
virtual int	UpdatePiece (int piece, int numPieces, int ghostLevels, const int extents[6]=nullptr)
	Convenience method to update an algorithm after passing requests to its first output port.
virtual int	UpdateExtent (const int extents[6])
	Convenience method to update an algorithm after passing requests to its first output port.
virtual int	UpdateTimeStep (double time, int piece=-1, int numPieces=1, int ghostLevels=0, const int extents[6]=nullptr)
	Convenience method to update an algorithm after passing requests to its first output port.
virtual void	UpdateInformation ()
	Bring the algorithm's information up-to-date.
virtual void	UpdateDataObject ()
	Create output object(s).
virtual void	PropagateUpdateExtent ()
	Propagate meta-data upstream.
virtual void	UpdateWholeExtent ()
	Bring this algorithm's outputs up-to-date.
void	ConvertTotalInputToPortConnection (int ind, int &port, int &conn)
	Convenience routine to convert from a linear ordering of input connections to a port/connection pair.
virtual vtkInformation *	GetInformation ()
	Set/Get the information object associated with this algorithm.
virtual void	SetInformation (vtkInformation *)
	Set/Get the information object associated with this algorithm.
void	Register (vtkObjectBase *o) override
	Participate in garbage collection.
void	UnRegister (vtkObjectBase *o) override
	Participate in garbage collection.
virtual void	SetAbortExecute (vtkTypeBool)
	Set/Get the AbortExecute flag for the process object.
virtual vtkTypeBool	GetAbortExecute ()
	Set/Get the AbortExecute flag for the process object.
virtual void	AbortExecuteOn ()
	Set/Get the AbortExecute flag for the process object.
virtual void	AbortExecuteOff ()
	Set/Get the AbortExecute flag for the process object.
virtual double	GetProgress ()
	Get the execution progress of a process object.
void	SetProgressShiftScale (double shift, double scale)
	Specify the shift and scale values to use to apply to the progress amount when UpdateProgress is called.
virtual double	GetProgressShift ()
	Specify the shift and scale values to use to apply to the progress amount when UpdateProgress is called.
virtual double	GetProgressScale ()
	Specify the shift and scale values to use to apply to the progress amount when UpdateProgress is called.
void	SetProgressText (const char *ptext)
	Set the current text message associated with the progress state.
virtual char *	GetProgressText ()
	Set the current text message associated with the progress state.
virtual unsigned long	GetErrorCode ()
	The error code contains a possible error that occurred while reading or writing the file.
virtual void	SetInputArrayToProcess (int idx, int port, int connection, int fieldAssociation, const char *name)
	Set the input data arrays that this algorithm will process.
virtual void	SetInputArrayToProcess (int idx, int port, int connection, int fieldAssociation, int fieldAttributeType)
	Set the input data arrays that this algorithm will process.
virtual void	SetInputArrayToProcess (int idx, vtkInformation *info)
	Set the input data arrays that this algorithm will process.
virtual void	SetInputConnection (int port, vtkAlgorithmOutput *input)
	Set the connection for the given input port index.
virtual void	SetInputConnection (vtkAlgorithmOutput *input)
	Set the connection for the given input port index.
virtual void	AddInputConnection (int port, vtkAlgorithmOutput *input)
	Add a connection to the given input port index.
virtual void	AddInputConnection (vtkAlgorithmOutput *input)
	Add a connection to the given input port index.
virtual void	Update (int port)
	Bring this algorithm's outputs up-to-date.
virtual void	Update ()
	Bring this algorithm's outputs up-to-date.
virtual void	SetReleaseDataFlag (int)
	Turn release data flag on or off for all output ports.
virtual int	GetReleaseDataFlag ()
	Turn release data flag on or off for all output ports.
void	ReleaseDataFlagOn ()
	Turn release data flag on or off for all output ports.
void	ReleaseDataFlagOff ()
	Turn release data flag on or off for all output ports.
int	UpdateExtentIsEmpty (vtkInformation *pinfo, vtkDataObject *output)
	This detects when the UpdateExtent will generate no data This condition is satisfied when the UpdateExtent has zero volume (0,-1,...) or the UpdateNumberOfPieces is 0.
int	UpdateExtentIsEmpty (vtkInformation *pinfo, int extentType)
	This detects when the UpdateExtent will generate no data This condition is satisfied when the UpdateExtent has zero volume (0,-1,...) or the UpdateNumberOfPieces is 0.
int *	GetUpdateExtent ()
	These functions return the update extent for output ports that use 3D extents.
int *	GetUpdateExtent (int port)
	These functions return the update extent for output ports that use 3D extents.
void	GetUpdateExtent (int &x0, int &x1, int &y0, int &y1, int &z0, int &z1)
	These functions return the update extent for output ports that use 3D extents.
void	GetUpdateExtent (int port, int &x0, int &x1, int &y0, int &y1, int &z0, int &z1)
	These functions return the update extent for output ports that use 3D extents.
void	GetUpdateExtent (int extent[6])
	These functions return the update extent for output ports that use 3D extents.
void	GetUpdateExtent (int port, int extent[6])
	These functions return the update extent for output ports that use 3D extents.
int	GetUpdatePiece ()
	These functions return the update extent for output ports that use piece extents.
int	GetUpdatePiece (int port)
	These functions return the update extent for output ports that use piece extents.
int	GetUpdateNumberOfPieces ()
	These functions return the update extent for output ports that use piece extents.
int	GetUpdateNumberOfPieces (int port)
	These functions return the update extent for output ports that use piece extents.
int	GetUpdateGhostLevel ()
	These functions return the update extent for output ports that use piece extents.
int	GetUpdateGhostLevel (int port)
	These functions return the update extent for output ports that use piece extents.
void	SetProgressObserver (vtkProgressObserver *)
	If an ProgressObserver is set, the algorithm will report progress through it rather than directly.
virtual vtkProgressObserver *	GetProgressObserver ()
	If an ProgressObserver is set, the algorithm will report progress through it rather than directly.
Public Member Functions inherited from vtkObject
	vtkBaseTypeMacro (vtkObject, vtkObjectBase)
virtual void	DebugOn ()
	Turn debugging output on.
virtual void	DebugOff ()
	Turn debugging output off.
bool	GetDebug ()
	Get the value of the debug flag.
void	SetDebug (bool debugFlag)
	Set the value of the debug flag.
virtual void	Modified ()
	Update the modification time for this object.
virtual vtkMTimeType	GetMTime ()
	Return this object's modified time.
void	PrintSelf (ostream &os, vtkIndent indent) override
	Methods invoked by print to print information about the object including superclasses.
void	RemoveObserver (unsigned long tag)
void	RemoveObservers (unsigned long event)
void	RemoveObservers (const char *event)
void	RemoveAllObservers ()
vtkTypeBool	HasObserver (unsigned long event)
vtkTypeBool	HasObserver (const char *event)
int	InvokeEvent (unsigned long event)
int	InvokeEvent (const char *event)
unsigned long	AddObserver (unsigned long event, vtkCommand *, float priority=0.0f)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.
unsigned long	AddObserver (const char *event, vtkCommand *, float priority=0.0f)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.
vtkCommand *	GetCommand (unsigned long tag)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.
void	RemoveObserver (vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.
void	RemoveObservers (unsigned long event, vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.
void	RemoveObservers (const char *event, vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.
vtkTypeBool	HasObserver (unsigned long event, vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.
vtkTypeBool	HasObserver (const char *event, vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.
template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, void(T::*callback)(), float priority=0.0f)
	Overloads to AddObserver that allow developers to add class member functions as callbacks for events.
template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, void(T::*callback)(vtkObject *, unsigned long, void *), float priority=0.0f)
	Overloads to AddObserver that allow developers to add class member functions as callbacks for events.
template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, bool(T::*callback)(vtkObject *, unsigned long, void *), float priority=0.0f)
	Allow user to set the AbortFlagOn() with the return value of the callback method.
int	InvokeEvent (unsigned long event, void *callData)
	This method invokes an event and return whether the event was aborted or not.
int	InvokeEvent (const char *event, void *callData)
	This method invokes an event and return whether the event was aborted or not.
Public Member Functions inherited from vtkObjectBase
const char *	GetClassName () const
	Return the class name as a string.
virtual vtkTypeBool	IsA (const char *name)
	Return 1 if this class is the same type of (or a subclass of) the named class.
virtual vtkIdType	GetNumberOfGenerationsFromBase (const char *name)
	Given the name of a base class of this class type, return the distance of inheritance between this class type and the named class (how many generations of inheritance are there between this class and the named class).
virtual void	Delete ()
	Delete a VTK object.
virtual void	FastDelete ()
	Delete a reference to this object.
void	InitializeObjectBase ()
void	Print (ostream &os)
	Print an object to an ostream.
virtual void	Register (vtkObjectBase *o)
	Increase the reference count (mark as used by another object).
virtual void	UnRegister (vtkObjectBase *o)
	Decrease the reference count (release by another object).
int	GetReferenceCount ()
	Return the current reference count of this object.
void	SetReferenceCount (int)
	Sets the reference count.
bool	GetIsInMemkind () const
	A local state flag that remembers whether this object lives in the normal or extended memory space.
virtual void	PrintHeader (ostream &os, vtkIndent indent)
	Methods invoked by print to print information about the object including superclasses.
virtual void	PrintTrailer (ostream &os, vtkIndent indent)
	Methods invoked by print to print information about the object including superclasses.

Static Public Member Functions
static vtkTypeBool	IsTypeOf (const char *type)
static vtkSelectVisiblePoints *	SafeDownCast (vtkObjectBase *o)
static vtkSelectVisiblePoints *	New ()
	Instantiate object with no renderer; window selection turned off; tolerance set to 0.01; and select invisible off.
Static Public Member Functions inherited from vtkPolyDataAlgorithm
static vtkPolyDataAlgorithm *	New ()
static vtkTypeBool	IsTypeOf (const char *type)
static vtkPolyDataAlgorithm *	SafeDownCast (vtkObjectBase *o)
Static Public Member Functions inherited from vtkAlgorithm
static vtkAlgorithm *	New ()
static vtkTypeBool	IsTypeOf (const char *type)
static vtkAlgorithm *	SafeDownCast (vtkObjectBase *o)
static vtkInformationIntegerKey *	INPUT_IS_OPTIONAL ()
	Keys used to specify input port requirements.
static vtkInformationIntegerKey *	INPUT_IS_REPEATABLE ()
static vtkInformationInformationVectorKey *	INPUT_REQUIRED_FIELDS ()
static vtkInformationStringVectorKey *	INPUT_REQUIRED_DATA_TYPE ()
static vtkInformationInformationVectorKey *	INPUT_ARRAYS_TO_PROCESS ()
static vtkInformationIntegerKey *	INPUT_PORT ()
static vtkInformationIntegerKey *	INPUT_CONNECTION ()
static vtkInformationIntegerKey *	CAN_PRODUCE_SUB_EXTENT ()
	This key tells the executive that a particular output port is capable of producing an arbitrary subextent of the whole extent.
static vtkInformationIntegerKey *	CAN_HANDLE_PIECE_REQUEST ()
	Key that tells the pipeline that a particular algorithm can or cannot handle piece request.
static void	SetDefaultExecutivePrototype (vtkExecutive *proto)
	If the DefaultExecutivePrototype is set, a copy of it is created in CreateDefaultExecutive() using NewInstance().
Static Public Member Functions inherited from vtkObject
static vtkObject *	New ()
	Create an object with Debug turned off, modified time initialized to zero, and reference counting on.
static void	BreakOnError ()
	This method is called when vtkErrorMacro executes.
static void	SetGlobalWarningDisplay (int val)
	This is a global flag that controls whether any debug, warning or error messages are displayed.
static void	GlobalWarningDisplayOn ()
	This is a global flag that controls whether any debug, warning or error messages are displayed.
static void	GlobalWarningDisplayOff ()
	This is a global flag that controls whether any debug, warning or error messages are displayed.
static int	GetGlobalWarningDisplay ()
	This is a global flag that controls whether any debug, warning or error messages are displayed.
Static Public Member Functions inherited from vtkObjectBase
static vtkTypeBool	IsTypeOf (const char *name)
	Return 1 if this class type is the same type of (or a subclass of) the named class.
static vtkIdType	GetNumberOfGenerationsFromBaseType (const char *name)
	Given a the name of a base class of this class type, return the distance of inheritance between this class type and the named class (how many generations of inheritance are there between this class and the named class).
static vtkObjectBase *	New ()
	Create an object with Debug turned off, modified time initialized to zero, and reference counting on.
static void	SetMemkindDirectory (const char *directoryname)
	The name of a directory, ideally mounted -o dax, to memory map an extended memory space within.
static bool	GetUsingMemkind ()
	A global state flag that controls whether vtkObjects are constructed in the usual way (the default) or within the extended memory space.

Protected Member Functions
virtual vtkObjectBase *	NewInstanceInternal () const
	vtkSelectVisiblePoints ()
	~vtkSelectVisiblePoints () override
int	RequestData (vtkInformation *, vtkInformationVector **, vtkInformationVector *) override
	This is called by the superclass.
int	FillInputPortInformation (int port, vtkInformation *info) override
	Fill the input port information objects for this algorithm.
Protected Member Functions inherited from vtkPolyDataAlgorithm
virtual vtkObjectBase *	NewInstanceInternal () const
	vtkPolyDataAlgorithm ()
	~vtkPolyDataAlgorithm () override
virtual int	RequestInformation (vtkInformation *request, vtkInformationVector **inputVector, vtkInformationVector *outputVector)
virtual int	RequestData (vtkInformation *request, vtkInformationVector **inputVector, vtkInformationVector *outputVector)
	This is called by the superclass.
virtual int	RequestUpdateExtent (vtkInformation *, vtkInformationVector **, vtkInformationVector *)
	This is called by the superclass.
int	FillOutputPortInformation (int port, vtkInformation *info) override
	Fill the output port information objects for this algorithm.
int	FillInputPortInformation (int port, vtkInformation *info) override
	Fill the input port information objects for this algorithm.
Protected Member Functions inherited from vtkAlgorithm
virtual vtkObjectBase *	NewInstanceInternal () const
	vtkAlgorithm ()
	~vtkAlgorithm () override
virtual int	FillInputPortInformation (int port, vtkInformation *info)
	Fill the input port information objects for this algorithm.
virtual int	FillOutputPortInformation (int port, vtkInformation *info)
	Fill the output port information objects for this algorithm.
virtual void	SetNumberOfInputPorts (int n)
	Set the number of input ports used by the algorithm.
virtual void	SetNumberOfOutputPorts (int n)
	Set the number of output ports provided by the algorithm.
int	InputPortIndexInRange (int index, const char *action)
int	OutputPortIndexInRange (int index, const char *action)
int	GetInputArrayAssociation (int idx, vtkInformationVector **inputVector)
	Get the assocition of the actual data array for the input array specified by idx, this is only reasonable during the REQUEST_DATA pass.
vtkInformation *	GetInputArrayFieldInformation (int idx, vtkInformationVector **inputVector)
	This method takes in an index (as specified in SetInputArrayToProcess) and a pipeline information vector.
virtual vtkExecutive *	CreateDefaultExecutive ()
	Create a default executive.
void	ReportReferences (vtkGarbageCollector *) override
virtual void	SetNthInputConnection (int port, int index, vtkAlgorithmOutput *input)
	Replace the Nth connection on the given input port.
virtual void	SetNumberOfInputConnections (int port, int n)
	Set the number of input connections on the given input port.
void	SetInputDataInternal (int port, vtkDataObject *input)
	These methods are used by subclasses to implement methods to set data objects directly as input.
void	AddInputDataInternal (int port, vtkDataObject *input)
int	GetInputArrayAssociation (int idx, int connection, vtkInformationVector **inputVector)
	Filters that have multiple connections on one port can use this signature.
int	GetInputArrayAssociation (int idx, vtkDataObject *input)
	Filters that have multiple connections on one port can use this signature.
vtkDataArray *	GetInputArrayToProcess (int idx, vtkInformationVector **inputVector)
	Get the actual data array for the input array specified by idx, this is only reasonable during the REQUEST_DATA pass.
vtkDataArray *	GetInputArrayToProcess (int idx, vtkInformationVector **inputVector, int &association)
	Get the actual data array for the input array specified by idx, this is only reasonable during the REQUEST_DATA pass.
vtkDataArray *	GetInputArrayToProcess (int idx, int connection, vtkInformationVector **inputVector)
	Filters that have multiple connections on one port can use this signature.
vtkDataArray *	GetInputArrayToProcess (int idx, int connection, vtkInformationVector **inputVector, int &association)
	Filters that have multiple connections on one port can use this signature.
vtkDataArray *	GetInputArrayToProcess (int idx, vtkDataObject *input)
	Filters that have multiple connections on one port can use this signature.
vtkDataArray *	GetInputArrayToProcess (int idx, vtkDataObject *input, int &association)
	Filters that have multiple connections on one port can use this signature.
vtkAbstractArray *	GetInputAbstractArrayToProcess (int idx, vtkInformationVector **inputVector)
	Get the actual data array for the input array specified by idx, this is only reasonable during the REQUEST_DATA pass.
vtkAbstractArray *	GetInputAbstractArrayToProcess (int idx, vtkInformationVector **inputVector, int &association)
	Get the actual data array for the input array specified by idx, this is only reasonable during the REQUEST_DATA pass.
vtkAbstractArray *	GetInputAbstractArrayToProcess (int idx, int connection, vtkInformationVector **inputVector)
	Filters that have multiple connections on one port can use this signature.
vtkAbstractArray *	GetInputAbstractArrayToProcess (int idx, int connection, vtkInformationVector **inputVector, int &association)
	Filters that have multiple connections on one port can use this signature.
vtkAbstractArray *	GetInputAbstractArrayToProcess (int idx, vtkDataObject *input)
	Filters that have multiple connections on one port can use this signature.
vtkAbstractArray *	GetInputAbstractArrayToProcess (int idx, vtkDataObject *input, int &association)
	Filters that have multiple connections on one port can use this signature.
virtual void	SetErrorCode (unsigned long)
	The error code contains a possible error that occurred while reading or writing the file.
Protected Member Functions inherited from vtkObject
	vtkObject ()
	~vtkObject () override
void	RegisterInternal (vtkObjectBase *, vtkTypeBool check) override
void	UnRegisterInternal (vtkObjectBase *, vtkTypeBool check) override
void	InternalGrabFocus (vtkCommand *mouseEvents, vtkCommand *keypressEvents=nullptr)
	These methods allow a command to exclusively grab all events.
void	InternalReleaseFocus ()
	These methods allow a command to exclusively grab all events.
Protected Member Functions inherited from vtkObjectBase
	vtkObjectBase ()
virtual	~vtkObjectBase ()
virtual void	RegisterInternal (vtkObjectBase *, vtkTypeBool check)
virtual void	UnRegisterInternal (vtkObjectBase *, vtkTypeBool check)
virtual void	ReportReferences (vtkGarbageCollector *)
	vtkObjectBase (const vtkObjectBase &)
void	operator= (const vtkObjectBase &)

Protected Attributes
vtkRenderer *	Renderer
vtkMatrix4x4 *	CompositePerspectiveTransform
vtkTypeBool	SelectionWindow
int	Selection [4]
int	InternalSelection [4]
vtkTypeBool	SelectInvisible
double	DirectionOfProjection [3]
double	Tolerance
double	ToleranceWorld
Protected Attributes inherited from vtkAlgorithm
vtkInformation *	Information
double	Progress
char *	ProgressText
vtkProgressObserver *	ProgressObserver
unsigned long	ErrorCode
	The error code contains a possible error that occurred while reading or writing the file.
Protected Attributes inherited from vtkObject
bool	Debug
vtkTimeStamp	MTime
vtkSubjectHelper *	SubjectHelper
Protected Attributes inherited from vtkObjectBase
std::atomic< int32_t >	ReferenceCount
vtkWeakPointerBase **	WeakPointers

Additional Inherited Members
Public Attributes inherited from vtkAlgorithm
vtkTypeBool	AbortExecute
Static Protected Member Functions inherited from vtkAlgorithm
static vtkInformationIntegerKey *	PORT_REQUIREMENTS_FILLED ()
Static Protected Member Functions inherited from vtkObjectBase
static vtkMallocingFunction	GetCurrentMallocFunction ()
static vtkReallocingFunction	GetCurrentReallocFunction ()
static vtkFreeingFunction	GetCurrentFreeFunction ()
static vtkFreeingFunction	GetAlternateFreeFunction ()
Static Protected Attributes inherited from vtkAlgorithm
static vtkExecutive *	DefaultExecutivePrototype

Detailed Description

extract points that are visible (based on z-buffer calculation)

vtkSelectVisiblePoints is a filter that selects points based on whether they are visible or not. Visibility is determined by accessing the z-buffer of a rendering window. (The position of each input point is converted into display coordinates, and then the z-value at that point is obtained. If within the user-specified tolerance, the point is considered visible.)

Points that are visible (or if the ivar SelectInvisible is on, invisible points) are passed to the output. Associated data attributes are passed to the output as well.

This filter also allows you to specify a rectangular window in display (pixel) coordinates in which the visible points must lie. This can be used as a sort of local "brushing" operation to select just data within a window.

Warning

You must carefully synchronize the execution of this filter. The filter refers to a renderer, which is modified every time a render occurs. Therefore, the filter is always out of date, and always executes. You may have to perform two rendering passes, or if you are using this filter in conjunction with vtkLabeledDataMapper, things work out because 2D rendering occurs after the 3D rendering.

Online Examples:

SelectVisiblePoints

LabeledMesh

Definition at line 83 of file vtkSelectVisiblePoints.h.

Member Typedef Documentation

Superclass

typedef vtkPolyDataAlgorithm vtkSelectVisiblePoints::Superclass

Definition at line 86 of file vtkSelectVisiblePoints.h.

Constructor & Destructor Documentation

vtkSelectVisiblePoints()

vtkSelectVisiblePoints::vtkSelectVisiblePoints ( )

protected

~vtkSelectVisiblePoints()

vtkSelectVisiblePoints::~vtkSelectVisiblePoints ( )

overrideprotected

Member Function Documentation

IsTypeOf()

static vtkTypeBool vtkSelectVisiblePoints::IsTypeOf ( const char *  type )

static

IsA()

virtual vtkTypeBool vtkSelectVisiblePoints::IsA ( const char *  name )

virtual

Return 1 if this class is the same type of (or a subclass of) the named class.

Returns 0 otherwise. This method works in combination with vtkTypeMacro found in vtkSetGet.h.

Reimplemented from vtkPolyDataAlgorithm.

SafeDownCast()

static vtkSelectVisiblePoints * vtkSelectVisiblePoints::SafeDownCast ( vtkObjectBase *  o )

static

NewInstanceInternal()

virtual vtkObjectBase * vtkSelectVisiblePoints::NewInstanceInternal ( ) const

protectedvirtual

Reimplemented from vtkPolyDataAlgorithm.

NewInstance()

vtkSelectVisiblePoints * vtkSelectVisiblePoints::NewInstance

(

)

const

PrintSelf()

void vtkSelectVisiblePoints::PrintSelf ( ostream &  os, vtkIndent  indent  )

overridevirtual

Methods invoked by print to print information about the object including superclasses.

Typically not called by the user (use Print() instead) but used in the hierarchical print process to combine the output of several classes.

Reimplemented from vtkPolyDataAlgorithm.

New()

static vtkSelectVisiblePoints * vtkSelectVisiblePoints::New ( )

static

Instantiate object with no renderer; window selection turned off; tolerance set to 0.01; and select invisible off.

SetRenderer()

void vtkSelectVisiblePoints::SetRenderer ( vtkRenderer *  ren )

inline

Specify the renderer in which the visibility computation is to be performed.

Definition at line 100 of file vtkSelectVisiblePoints.h.

GetRenderer()

vtkRenderer * vtkSelectVisiblePoints::GetRenderer ( )

inline

Specify the renderer in which the visibility computation is to be performed.

Definition at line 108 of file vtkSelectVisiblePoints.h.

SetSelectionWindow()

virtual void vtkSelectVisiblePoints::SetSelectionWindow ( vtkTypeBool  )

virtual

Set/Get the flag which enables selection in a rectangular display region.

GetSelectionWindow()

virtual vtkTypeBool vtkSelectVisiblePoints::GetSelectionWindow ( )

virtual

Set/Get the flag which enables selection in a rectangular display region.

SelectionWindowOn()

virtual void vtkSelectVisiblePoints::SelectionWindowOn ( )

virtual

Set/Get the flag which enables selection in a rectangular display region.

SelectionWindowOff()

virtual void vtkSelectVisiblePoints::SelectionWindowOff ( )

virtual

Set/Get the flag which enables selection in a rectangular display region.

SetSelection() [1/2]

virtual void vtkSelectVisiblePoints::SetSelection ( int  , int  , int  , int    )

virtual

Specify the selection window in display coordinates.

You must specify a rectangular region using (xmin,xmax,ymin,ymax).

SetSelection() [2/2]

virtual void vtkSelectVisiblePoints::SetSelection ( int  [4] )

virtual

Specify the selection window in display coordinates.

You must specify a rectangular region using (xmin,xmax,ymin,ymax).

GetSelection() [1/2]

virtual int * vtkSelectVisiblePoints::GetSelection ( )

virtual

Specify the selection window in display coordinates.

You must specify a rectangular region using (xmin,xmax,ymin,ymax).

GetSelection() [2/2]

virtual void vtkSelectVisiblePoints::GetSelection ( int  data[4] )

virtual

Specify the selection window in display coordinates.

You must specify a rectangular region using (xmin,xmax,ymin,ymax).

SetSelectInvisible()

virtual void vtkSelectVisiblePoints::SetSelectInvisible ( vtkTypeBool  )

virtual

Set/Get the flag which enables inverse selection; i.e., invisible points are selected.

GetSelectInvisible()

virtual vtkTypeBool vtkSelectVisiblePoints::GetSelectInvisible ( )

virtual

Set/Get the flag which enables inverse selection; i.e., invisible points are selected.

SelectInvisibleOn()

virtual void vtkSelectVisiblePoints::SelectInvisibleOn ( )

virtual

Set/Get the flag which enables inverse selection; i.e., invisible points are selected.

SelectInvisibleOff()

virtual void vtkSelectVisiblePoints::SelectInvisibleOff ( )

virtual

Set/Get the flag which enables inverse selection; i.e., invisible points are selected.

SetTolerance()

virtual void vtkSelectVisiblePoints::SetTolerance ( double  )

virtual

Set/Get a tolerance in normalized display coordinate system to use to determine whether a point is visible.

A tolerance is usually required because the conversion from world space to display space during rendering introduces numerical round-off.

GetTolerance()

virtual double vtkSelectVisiblePoints::GetTolerance ( )

virtual

Set/Get a tolerance in normalized display coordinate system to use to determine whether a point is visible.

A tolerance is usually required because the conversion from world space to display space during rendering introduces numerical round-off.

SetToleranceWorld()

virtual void vtkSelectVisiblePoints::SetToleranceWorld ( double  )

virtual

Set/Get a tolerance in world coordinate system to use to determine whether a point is visible.

This allows determining visibility of small spheroid objects (such as glyphs) with known size in world coordinates. By default it is set to 0.

GetToleranceWorld()

virtual double vtkSelectVisiblePoints::GetToleranceWorld ( )

virtual

Set/Get a tolerance in world coordinate system to use to determine whether a point is visible.

This allows determining visibility of small spheroid objects (such as glyphs) with known size in world coordinates. By default it is set to 0.

Initialize()

float * vtkSelectVisiblePoints::Initialize

(

bool

getZbuff

)

Requires the renderer to be set.

Populates the composite perspective transform and returns a pointer to the Z-buffer (that must be deleted) if getZbuff is set.

IsPointOccluded()

bool vtkSelectVisiblePoints::IsPointOccluded	(	const double	x[3],
		const float *	zPtr
	)

Tests if a point x is being occluded or not against the Z-Buffer array passed in by zPtr.

Call Initialize before calling this method.

GetMTime()

vtkMTimeType vtkSelectVisiblePoints::GetMTime ( )

overridevirtual

Return MTime also considering the renderer.

Reimplemented from vtkObject.

RequestData()

int vtkSelectVisiblePoints::RequestData ( vtkInformation *  request, vtkInformationVector **  inputVector, vtkInformationVector *  outputVector  )

overrideprotectedvirtual

This is called by the superclass.

This is the method you should override.

Reimplemented from vtkPolyDataAlgorithm.

FillInputPortInformation()

int vtkSelectVisiblePoints::FillInputPortInformation ( int  port, vtkInformation *  info  )

overrideprotectedvirtual

Fill the input port information objects for this algorithm.

This is invoked by the first call to GetInputPortInformation for each port so subclasses can specify what they can handle.

Reimplemented from vtkPolyDataAlgorithm.

Member Data Documentation

Renderer

vtkRenderer* vtkSelectVisiblePoints::Renderer

protected

Definition at line 187 of file vtkSelectVisiblePoints.h.

CompositePerspectiveTransform

vtkMatrix4x4* vtkSelectVisiblePoints::CompositePerspectiveTransform

protected

Definition at line 188 of file vtkSelectVisiblePoints.h.

SelectionWindow

vtkTypeBool vtkSelectVisiblePoints::SelectionWindow

protected

Definition at line 190 of file vtkSelectVisiblePoints.h.

Selection

int vtkSelectVisiblePoints::Selection[4]

protected

Definition at line 191 of file vtkSelectVisiblePoints.h.

InternalSelection

int vtkSelectVisiblePoints::InternalSelection[4]

protected

Definition at line 192 of file vtkSelectVisiblePoints.h.

SelectInvisible

vtkTypeBool vtkSelectVisiblePoints::SelectInvisible

protected

Definition at line 193 of file vtkSelectVisiblePoints.h.

DirectionOfProjection

double vtkSelectVisiblePoints::DirectionOfProjection[3]

protected

Definition at line 194 of file vtkSelectVisiblePoints.h.

Tolerance

double vtkSelectVisiblePoints::Tolerance

protected

Definition at line 195 of file vtkSelectVisiblePoints.h.

ToleranceWorld

double vtkSelectVisiblePoints::ToleranceWorld

protected

Definition at line 196 of file vtkSelectVisiblePoints.h.

---

The documentation for this class was generated from the following file:

• Rendering/Core/vtkSelectVisiblePoints.h